Plants evergreen. Rhizome erect or ascending, short, densely covered with linear brown scales. Fronds up to 1 m; stipe stramineous, 50-58 cm, ca. 6 mm in diam. at base, with linear and lanceolate brown scales and larger scales; large scales denser on lower stipe, bicolorous, middle part blackish brown, margins brown, shiny, ovate-lanceolate, up to 21 × 10 mm, subentire, caudate. Lamina bipinnate, deltoid-oblong, 57-61 × 27-29 cm at middle, slightly contracted toward base, acute; rachis and costa without proliferous bulbils, densely covered with linear dark brown scales and subulate scales, subulate scale margins fimbriate. Pinnae 8-12 pairs, alternate, ascendant, shortly stalked, lanceolate, 12-14 × 2.5-2.8 cm, 1-pinnate, apices caudate-acuminate and fertile, not contracted toward base. Pinnules 14-18 pairs, alternate, shortly stalked, oblong, 1.5-2(-3) × 0.6-0.8 cm, cuneate, acute; auricles deltoid, shallowly obtusely toothed, basal acroscopic pinnules largest; abaxially with few lanceolate microscales, adaxially subglabrous; frond texture thinly leathery; venation pinnate on pinnules, lateral veins 5-8 pairs, dichotomous, distinct. Sori dark brown, 6-8 pairs per pinnule, in 1 row on each side of midrib, terminal on veinlets, abaxial pinnule surface with sori obviously concave; indusia brown, membranous, entire.
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